WikiCards
Play on iPhone nowFree in Safari. Add it to your Home Screen.Play
WikiCards · Card list · Science cards · Subset
Uncommon card · Science
Subset, an Uncommon card
In mathematics, a set A is a subset of a set B if and only if all elements of A are also elements of B, B is then a superset of A. It is possible for A and B to be equal, if they are unequal, then A is a proper subset of B. The relationship of one set being a subset of another is called inclusion.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 58
- DEF
- 46
- Power
- 104
- Wikipedia reads a year
- 97,000
Power 104 (ATK + DEF): stronger than 55 % of WikiCards cards.
Subset quiz: 3 questions
Three questions on the Subset card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
A is a subset of B may also be ______ as B includes A or A is included in B. A k-subset is a subset with k elements.
Answer
expressed. A is a subset of B may also be expressed as B includes A or A is included in B. A k-subset is a subset with k elements. From the Subset article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
2011 FIA WTCC Race of Italy. 2011 FIA WTCC Race of Italy 68 · Angular resolution 65 · Blimp 62 · Subset 58 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Blimp. Blimp 150,000 · Subset 97,000 · Biogeographic realm 74,000 · 2011 FIA WTCC Race of Italy 250 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- A is a subset of B may also be expressed as B includes A or A is included in B. A k-subset is a subset with k elements.
- When quantified, A ⊆ B is represented as ∀ x. One can prove the statement A ⊆ B by applying a proof technique known as the element argument:Let sets A and B be given.
- To prove that A ⊆ B, suppose that a is a particular but arbitrarily chosen element of A show that a is an element of B. The validity of this technique can be seen as a consequence of universal generalization: the technique shows ⇒ for an arbitrarily chosen element c. Universal generalisation then implies ∀ x, which is equivalent to A ⊆ B, as stated above.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Subset article was read about 97,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 58 and blocks with 46: each hit it takes is cut by 18 %.
How to get Subset
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Subset in the power ranking, all domains together.
- Mladen ŽižovićUncommon · Society · ATK 61 DEF 43
- Battles of the IsonzoUncommon · History · ATK 62 DEF 42
- JackUncommon · Society · ATK 58 DEF 46
- BolideUncommon · Nature · ATK 57 DEF 47
- Azimuthal equidistant projectionUncommon · Science · ATK 59 DEF 45
- Guy PicciottoUncommon · Arts · ATK 60 DEF 44
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Subset (revision), CC BY-SA 4.0. Photo : Booyabazooka, Public domain, Wikimedia Commons.
